// Copyright 2025 RisingWave Labs
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use risingwave_pb::stream_plan::SyncLogStoreNode;
use risingwave_storage::StateStore;
use tokio::time::Duration;

use crate::common::log_store_impl::kv_log_store::KV_LOG_STORE_V2_INFO;
use crate::common::log_store_impl::kv_log_store::serde::LogStoreRowSerde;
use crate::error::StreamResult;
use crate::executor::{Executor, SyncedKvLogStoreExecutor, SyncedKvLogStoreMetrics};
use crate::from_proto::ExecutorBuilder;
use crate::task::ExecutorParams;

pub struct SyncLogStoreExecutorBuilder;

impl ExecutorBuilder for SyncLogStoreExecutorBuilder {
    type Node = SyncLogStoreNode;

    async fn new_boxed_executor(
        params: ExecutorParams,
        node: &Self::Node,
        store: impl StateStore,
    ) -> StreamResult<Executor> {
        let actor_context = params.actor_context.clone();
        let table = node.log_store_table.as_ref().unwrap().clone();
        let table_id = table.id;

        let metrics = {
            let streaming_metrics = actor_context.streaming_metrics.as_ref();
            let actor_id = actor_context.id;
            let fragment_id = params.fragment_id;
            let name = "sync_log_store";
            let target = "unaligned_hash_join";
            SyncedKvLogStoreMetrics::new(streaming_metrics, actor_id, fragment_id, name, target)
        };

        let serde = LogStoreRowSerde::new(
            &table,
            params.vnode_bitmap.map(|b| b.into()),
            &KV_LOG_STORE_V2_INFO,
        );
        let [upstream] = params.input.try_into().unwrap();

        // Previously, these configs are persisted in the plan node.
        // Now it's always `None` and we should refer to the job's config override.
        #[allow(deprecated)]
        let pause_duration_ms = node.pause_duration_ms.map_or(
            params.config.developer.sync_log_store_pause_duration_ms,
            |v| v as usize,
        );
        #[allow(deprecated)]
        let buffer_max_size = node
            .buffer_size
            .map_or(params.config.developer.sync_log_store_buffer_size, |v| {
                v as usize
            });

        let chunk_size = actor_context.config.developer.chunk_size;

        let executor = SyncedKvLogStoreExecutor::new(
            actor_context,
            table_id,
            metrics,
            serde,
            store,
            buffer_max_size,
            chunk_size,
            upstream,
            Duration::from_millis(pause_duration_ms as _),
            node.aligned,
        );
        Ok((params.info, executor).into())
    }
}
